VZH / Hydraulical

Storm brake / rail clamp operated hydraulically type VZH

Application areas:

  • Crane systems
  • Offshore / Ship
  • Steel industry
  • Mining / Material handling
  • Wind industry
  • Railbound hall roofs / gates

Product type:

  • VZH / hydraulical

Product description

Hydraulically operated storm brake / rail clamp to protect crane systems or railbound machines against unwanted movements e.g. storm.

  • Hydraulic closing and opening
  • Restraining / holding forces up to 256 kN per clamp
  • Limit switches monitoring for clamp position
  • Using a hydraulic power unit with pressure storage
    Optional: Closing via pressure reservoir with power blackout / self-acting at power failure
  • Lateral compensation for rail misalignments ±15 mm or more, if requested
  • Horizonal and vertical version
  • MADE IN GERMANY, own production

Functional principle

Hydraulical closing and opening.

Type VZH available in 3 versions:

1. With hand pump, NOT self-acting at power failure!
2. With hydraulic power unit, WITHOUT self-acting at power failure!
3. Hydraulic power unit with pressure storage, self-acting at power failure!

Technical benefits

  • Technical flexibility
  • High quality and safety level / Reduction of maintenance and follow-up costs)

{{ Reparatur }}

Additional to own brand production, RFT is specialized in repairing storm brakes / rail clamps of other brands due to in-house production flexibility.

Rail clamps show wear due to the fact that they are in use over many years, which means they no longer have the neccessary safety levels required.

  • Functional analysis oft he rail clamp / storm brake
  • Renewal of the clamping jaws
  • Renewal of the bushes
  • Renewal of the axis
  • Renewal of the wheels
  • New painting
  • In case of extreme steel wear the construction will be overhauled and restored into the original condition
  • High-grade 2-component paint

In specific situations, the RFT can provide a storm brake as a ring exchange.Therefore the Intralogistics and safety operates smoothly and is undisturbed.

Please indicate your existing rail clamp type.


  • Special flange mounting
  • Special painting (Please specify RAL color)
  • Special construction
  • Special flange mounting
Spaans babcock